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Sinai, SD

Population
102
U.S. Census Population Estimates Program · 2025
Elevation
1,785 ft
Median Home Value
$89,300
U.S. Census American Community Survey 5-Year · 2024
Median Income
$56,875
U.S. Census American Community Survey 5-Year · 2024

Explore

Sinai in context.

OverallBest places in South DakotaPopulation rankingHighest population places in South DakotaNearest larger communityBrookings, South Dakota13 miles away · 25,355 residents.

About Sinai

Sinai is a town in Brookings County, South Dakota, United States. The 2020 census counted 99 residents. Sinai was laid out in 1907, and named after the Biblical Mount Sinai. Sinai makes sense once you see how its past, landscape, and current gathering spots overlap. The useful thing to know about Sinai is that its older landmarks and current settings belong to one connected place.

Top Rating Signals

Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower FEMA County Hurricane Risk IndexA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0rating

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